Tim is the founder of GAT St. Louis. He began training in Filipino and Indonesian martial arts in 1995, and holds the rank of Ninong in Garimot arnis. Tim is also a well-known researcher of historical Spanish swordsmanship, having taught at international events and produced many translations of fencing treatises from the 16th - 18th centuries.

Tim's GAT fighting name is Tamaraw - the solitary buffalo native only to Mindoro island, known for its dangerous ferocity when threatened.